// 
//  Author:
//    Snowdrop Short snowdrop dot short at gmail dot com
// 
//  Copyright (c) 2009, Snowdrop Short
// 
//  All rights reserved.
// 
//  Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
// 
//     * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in
//       the documentation and/or other materials provided with the distribution.
//     * Neither the name of the [ORGANIZATION] nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
// 
//  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
//  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
//  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
//  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
//  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
//  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
//  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
//  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
//  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
//  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
//  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// 

using System;
using System.IO;
using System.Reflection;
using System.Collections.Generic;
using OpenMetaverse;

namespace OpenFuse.Backend
{
	
	
	public class ProtectedAssets
	{
		
		static HashSet<UUID> _protectedUUIDs = new HashSet<UUID>();
		
		static ProtectedAssets()
		{
			// find the manifest of proected asset UUID
			// those are assets which for some reason or other
			// cannot be replicated without viloating the license

			// Retrieve a list of resource names contained by the assembly. 
			Assembly assembly = Assembly.GetExecutingAssembly();
			string[] resourceNames = assembly.GetManifestResourceNames();
			
			// the resource contains a number of lines, each being a UUID
			foreach(string resourceName in resourceNames)
			{
                if (resourceName.EndsWith("ProtectedAssets.txt"))
                {
                    using (Stream fooStream = assembly.GetManifestResourceStream(resourceName))
                    using (StreamReader sr = new StreamReader(fooStream))
						while(!sr.EndOfStream)
							_protectedUUIDs.Add(new UUID(sr.ReadLine()));
                    break;
                }
			}
		}
		
		public static bool IsAssetProtected(UUID assetID)
		{
			return _protectedUUIDs.Contains(assetID);
		}
	}
}
